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H y d r o-Aire coolant pumps have operated oncontrol systems in space in such projects as theLunar Excursion Module and the Apollo program.In 1970, during Apollo 13's flight to the moon, acrippling explosion occurred on board. Thecoolant pumps were one of the few fullyoperational elements and maintained module temperaturesthrough to the successful end of the aborted mission.NASA determined that the pumps' continued operation was socritical that they required a Hydro-Aire support crew connectedby telephone to Mission Control 24hours a day to provide neededengineering support. To d a y, Cranepumps and electronics are used on Mars.
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